ID: 152

AQSQID: 060371701

Site Name: Pomona

Added: April 21, 2020, 6:24 p.m.

Updated: Sept. 21, 2021, 5:05 p.m.

Location: Pomona (Wilton Heights), CA

Reporting: True, Located: True

Current AQI: 103.0

Pomona (Wilton Heights) CA, US: 34.0667, -117.7506

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 3 p.m. 109.5 ppb (103) 64.7 ppb (63) N/A 45.0 ppb (43) N/A N/A 6.0 ppb (6) 0.97 ppb (12) N/A N/A 103.0
 
Sept. 21, 2021, 2 p.m. 94.2 ppb (94) 60.8 ppb (59) N/A 33.0 ppb (32) N/A N/A 3.0 ppb (3) 1.0 ppb (12) N/A N/A 94.0
 
Sept. 21, 2021, 1 p.m. 61.5 ppb (59) 33.5 ppb (32) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) 0.68 ppb (8) N/A N/A 59.0
 
Sept. 21, 2021, noon 55.3 ppb (53) 26.6 ppb (26) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 0.6 ppb (7) N/A N/A 53.0
 
Sept. 21, 2021, 11 a.m. 40.7 ppb (39) 11.3 ppb (11) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 0.46 ppb (6) N/A N/A 39.0
 
Sept. 21, 2021, 10 a.m. 35.5 ppb (34) 7.1 ppb (7) N/A 28.0 ppb (27) N/A N/A 3.0 ppb (3) 0.41 ppb (5) N/A N/A 34.0
 
Sept. 21, 2021, 9 a.m. 44.6 ppb (43) 11.1 ppb (11) N/A 34.0 ppb (33) N/A N/A 2.0 ppb (2) 0.42 ppb (5) N/A N/A 43.0
 
Sept. 21, 2021, 8 a.m. 34.4 ppb (33) 5.5 ppb (6) N/A 29.0 ppb (28) N/A N/A 4.0 ppb (4) 0.4 ppb (5) N/A N/A 33.0
 
Sept. 21, 2021, 7 a.m. 35.3 ppb (34) 4.5 ppb (5) N/A 31.0 ppb (30) N/A N/A 5.0 ppb (5) 0.43 ppb (5) N/A N/A 34.0
 
Sept. 21, 2021, 6 a.m. 32.3 ppb (31) 4.0 ppb (4) N/A 28.0 ppb (27) N/A N/A 9.0 ppb (9) 0.42 ppb (5) N/A N/A 31.0
 
Sept. 21, 2021, 5 a.m. 19.3 ppb (19) 1.8 ppb (2) N/A 17.0 ppb (17) N/A N/A 22.0 ppb (21) 0.34 ppb (4) N/A N/A 21.0
 
Sept. 21, 2021, 4 a.m. 21.8 ppb (21) 2.3 ppb (3) N/A 19.0 ppb (18) N/A N/A 23.0 ppb (22) 0.34 ppb (4) N/A N/A 22.0
 
Sept. 21, 2021, 3 a.m. 17.5 ppb (17) 1.8 ppb (2) N/A 16.0 ppb (16) N/A N/A 30.0 ppb (28) 0.31 ppb (4) N/A N/A 28.0
 
Sept. 21, 2021, 2 a.m. 17.9 ppb (17) 2.2 ppb (3) N/A 16.0 ppb (16) N/A N/A 39.0 ppb (37) 0.32 ppb (4) N/A N/A 37.0
 
Sept. 21, 2021, 1 a.m. 15.8 ppb (15) 1.8 ppb (2) N/A 14.0 ppb (14) N/A N/A 53.0 ppb (50) 0.32 ppb (4) N/A N/A 50.0
 
Sept. 21, 2021, midnight 15.4 ppb (15) 2.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 68.0 ppb (94) 0.32 ppb (4) N/A N/A 94.0
 
Sept. 20, 2021, 11 p.m. 12.3 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A 90.0 ppb (112) 0.35 ppb (4) N/A N/A 112.0
 
Sept. 20, 2021, 10 p.m. 13.4 ppb (13) 1.9 ppb (2) N/A 11.0 ppb (11) N/A N/A 89.0 ppb (111) 0.36 ppb (5) N/A N/A 111.0
 
Sept. 20, 2021, 9 p.m. 15.7 ppb (15) 2.8 ppb (3) N/A 13.0 ppb (13) N/A N/A 83.0 ppb (108) 0.38 ppb (5) N/A N/A 108.0
 
Sept. 20, 2021, 8 p.m. 17.0 ppb (17) 2.7 ppb (3) N/A 14.0 ppb (14) N/A N/A 78.0 ppb (105) 0.4 ppb (5) N/A N/A 105.0
 
Sept. 20, 2021, 7 p.m. 20.8 ppb (20) 4.3 ppb (5) N/A 17.0 ppb (17) N/A N/A 58.0 ppb (61) 0.43 ppb (5) N/A N/A 61.0
 
Sept. 20, 2021, 6 p.m. 27.8 ppb (27) 6.2 ppb (6) N/A 22.0 ppb (21) N/A N/A 49.0 ppb (46) 0.43 ppb (5) N/A N/A 46.0
 
Sept. 20, 2021, 5 p.m. 29.2 ppb (28) 7.4 ppb (7) N/A 22.0 ppb (21) N/A N/A 42.0 ppb (39) 0.42 ppb (5) N/A N/A 39.0
 
Sept. 20, 2021, 4 p.m. 60.6 ppb (59) 25.2 ppb (24) N/A 35.0 ppb (34) N/A N/A 17.0 ppb (16) 0.65 ppb (8) N/A N/A 59.0
 
Sept. 20, 2021, 3 p.m. 81.7 ppb (81) 44.4 ppb (42) N/A 37.0 ppb (35) N/A N/A 6.0 ppb (6) 0.89 ppb (11) N/A N/A 81.0
 
Sept. 20, 2021, 2 p.m. 70.9 ppb (70) 40.8 ppb (39) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) 1.01 ppb (12) N/A N/A 70.0
 
Sept. 20, 2021, 1 p.m. 42.4 ppb (40) 13.4 ppb (13) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 0.66 ppb (8) N/A N/A 40.0
 
Sept. 20, 2021, noon 39.7 ppb (38) 11.2 ppb (11) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 0.61 ppb (7) N/A N/A 38.0
 
Sept. 20, 2021, 11 a.m. 40.6 ppb (39) 10.2 ppb (10) N/A 30.0 ppb (29) N/A N/A 2.0 ppb (2) 0.54 ppb (6) N/A N/A 39.0
 
Sept. 20, 2021, 10 a.m. 37.9 ppb (36) 7.4 ppb (7) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) 0.51 ppb (6) N/A N/A 36.0
 
Sept. 20, 2021, 9 a.m. 30.9 ppb (30) 3.4 ppb (4) N/A 28.0 ppb (27) N/A N/A 7.0 ppb (7) 0.51 ppb (6) N/A N/A 30.0
 
Sept. 20, 2021, 8 a.m. 27.9 ppb (27) 2.7 ppb (3) N/A 25.0 ppb (24) N/A N/A 10.0 ppb (10) 0.52 ppb (6) N/A N/A 27.0
 
Sept. 20, 2021, 7 a.m. 22.1 ppb (21) 2.2 ppb (3) N/A 20.0 ppb (19) N/A N/A 19.0 ppb (18) 0.46 ppb (6) N/A N/A 21.0
 
Sept. 20, 2021, 6 a.m. 23.5 ppb (23) 3.0 ppb (3) N/A 21.0 ppb (20) N/A N/A 19.0 ppb (18) 0.52 ppb (6) N/A N/A 23.0
 
Sept. 20, 2021, 5 a.m. 17.2 ppb (17) 2.5 ppb (3) N/A 15.0 ppb (15) N/A N/A 31.0 ppb (29) 0.34 ppb (4) N/A N/A 29.0
 
Sept. 20, 2021, 4 a.m. 14.9 ppb (15) 1.7 ppb (2) N/A 13.0 ppb (13) N/A N/A 37.0 ppb (35) 0.33 ppb (4) N/A N/A 35.0
 
Sept. 20, 2021, 3 a.m. 15.8 ppb (15) 2.2 ppb (3) N/A 14.0 ppb (14) N/A N/A 42.0 ppb (39) 0.33 ppb (4) N/A N/A 39.0
 
Sept. 20, 2021, 2 a.m. 13.7 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (12) N/A N/A 50.0 ppb (47) 0.32 ppb (4) N/A N/A 47.0
 
Sept. 20, 2021, 1 a.m. 11.1 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A N/A 65.0 ppb (84) 0.27 ppb (4) N/A N/A 84.0
 
Sept. 20, 2021, midnight 10.8 ppb (11) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A 75.0 ppb (104) 0.29 ppb (4) N/A N/A 104.0
 
Sept. 19, 2021, 11 p.m. 8.8 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 81.0 ppb (107) 0.27 ppb (4) N/A N/A 107.0
 
Sept. 19, 2021, 10 p.m. 8.8 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 79.0 ppb (106) 0.28 ppb (4) N/A N/A 106.0
 
Sept. 19, 2021, 9 p.m. 7.3 ppb (7) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 71.0 ppb (101) 0.23 ppb (3) N/A N/A 101.0
 
Sept. 19, 2021, 8 p.m. 7.5 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 65.0 ppb (84) 0.22 ppb (3) N/A N/A 84.0
 
Sept. 19, 2021, 7 p.m. 8.7 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A N/A 59.0 ppb (65) 0.25 ppb (3) N/A N/A 65.0
 
Sept. 19, 2021, 6 p.m. 11.1 ppb (11) 2.7 ppb (3) N/A 8.0 ppb (8) N/A N/A 51.0 ppb (48) 0.3 ppb (4) N/A N/A 48.0
 
Sept. 19, 2021, 5 p.m. 12.1 ppb (12) 3.4 ppb (4) N/A 9.0 ppb (9) N/A N/A 43.0 ppb (40) 0.28 ppb (4) N/A N/A 40.0
 
Sept. 19, 2021, 4 p.m. 20.0 ppb (19) 7.1 ppb (7) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) 0.44 ppb (5) N/A N/A 25.0
 
Sept. 19, 2021, 3 p.m. 25.7 ppb (25) 10.0 ppb (10) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) 0.49 ppb (6) N/A N/A 25.0
 
Sept. 19, 2021, 2 p.m. 35.4 ppb (34) 15.1 ppb (15) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (6) 0.55 ppb (7) N/A N/A 34.0
 
Sept. 19, 2021, 1 p.m. 29.7 ppb (29) 8.1 ppb (8) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.51 ppb (6) N/A N/A 29.0
 
Sept. 19, 2021, noon 25.4 ppb (24) 4.2 ppb (4) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) 0.46 ppb (6) N/A N/A 24.0
 
Sept. 19, 2021, 11 a.m. 24.6 ppb (24) 4.1 ppb (4) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) 0.45 ppb (6) N/A N/A 24.0
 
Sept. 19, 2021, 10 a.m. 26.5 ppb (25) 4.9 ppb (5) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.48 ppb (6) N/A N/A 25.0
 
Sept. 19, 2021, 9 a.m. 24.1 ppb (23) 3.8 ppb (4) N/A 20.0 ppb (19) N/A N/A 7.0 ppb (7) 0.44 ppb (5) N/A N/A 23.0
 
Sept. 19, 2021, 8 a.m. 20.8 ppb (20) 2.8 ppb (3) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) 0.46 ppb (6) N/A N/A 20.0
 
Sept. 19, 2021, 7 a.m. 22.1 ppb (21) 2.9 ppb (3) N/A 19.0 ppb (18) N/A N/A 15.0 ppb (14) 0.49 ppb (6) N/A N/A 21.0
 
Sept. 19, 2021, 6 a.m. 21.5 ppb (21) 5.0 ppb (5) N/A 16.0 ppb (16) N/A N/A 20.0 ppb (19) 0.46 ppb (6) N/A N/A 21.0
 
Sept. 19, 2021, 5 a.m. 15.7 ppb (15) 2.6 ppb (3) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) 0.38 ppb (5) N/A N/A 25.0
 
Sept. 19, 2021, 4 a.m. 14.4 ppb (14) 1.8 ppb (2) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.33 ppb (4) N/A N/A 27.0
 
Sept. 19, 2021, 3 a.m. 16.0 ppb (16) 1.6 ppb (2) N/A 14.0 ppb (14) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A N/A 28.0
 
Sept. 19, 2021, 2 a.m. 16.1 ppb (16) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 33.0 ppb (31) 0.33 ppb (4) N/A N/A 31.0
 
Sept. 19, 2021, 1 a.m. 13.9 ppb (14) 1.9 ppb (2) N/A 12.0 ppb (12) N/A N/A 50.0 ppb (47) 0.31 ppb (4) N/A N/A 47.0
 
Sept. 19, 2021, midnight 10.5 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A 65.0 ppb (84) 0.27 ppb (4) N/A N/A 84.0
 
Sept. 18, 2021, 11 p.m. 10.9 ppb (11) 1.8 ppb (2) N/A 9.0 ppb (9) N/A N/A 74.0 ppb (103) 0.29 ppb (4) N/A N/A 103.0
 
Sept. 18, 2021, 10 p.m. 9.7 ppb (10) 1.7 ppb (2) N/A 8.0 ppb (8) N/A N/A 78.0 ppb (105) 0.29 ppb (4) N/A N/A 105.0
 
Sept. 18, 2021, 9 p.m. 10.5 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (9) N/A N/A 74.0 ppb (103) 0.31 ppb (4) N/A N/A 103.0
 
Sept. 18, 2021, 8 p.m. 11.5 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 65.0 ppb (84) 0.32 ppb (4) N/A N/A 84.0
 
Sept. 18, 2021, 7 p.m. 11.2 ppb (11) 2.6 ppb (3) N/A 9.0 ppb (9) N/A N/A 55.0 ppb (51) 0.3 ppb (4) N/A N/A 51.0
 
Sept. 18, 2021, 6 p.m. 13.2 ppb (13) 3.6 ppb (4) N/A 10.0 ppb (10) N/A N/A 45.0 ppb (42) 0.31 ppb (4) N/A N/A 42.0
 
Sept. 18, 2021, 5 p.m. 16.1 ppb (16) 5.0 ppb (5) N/A 11.0 ppb (11) N/A N/A 37.0 ppb (35) 0.33 ppb (4) N/A N/A 35.0
 
Sept. 18, 2021, 4 p.m. 18.2 ppb (18) 6.4 ppb (7) N/A 12.0 ppb (12) N/A N/A 31.0 ppb (29) 0.36 ppb (5) N/A N/A 29.0
 
Sept. 18, 2021, 3 p.m. 16.9 ppb (16) 5.3 ppb (5) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) 0.35 ppb (4) N/A N/A 26.0
 
Sept. 18, 2021, 2 p.m. 26.7 ppb (26) 7.8 ppb (8) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (13) 0.45 ppb (6) N/A N/A 26.0
 
Sept. 18, 2021, 1 p.m. 18.9 ppb (18) 3.3 ppb (4) N/A 16.0 ppb (16) N/A N/A 15.0 ppb (14) 0.37 ppb (5) N/A N/A 18.0
 
Sept. 18, 2021, noon 14.4 ppb (14) 2.2 ppb (3) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) 0.31 ppb (4) N/A N/A 19.0
 
Sept. 18, 2021, 11 a.m. 16.6 ppb (16) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 18.0 ppb (17) 0.38 ppb (5) N/A N/A 17.0
 
Sept. 18, 2021, 10 a.m. 17.8 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (16) N/A N/A 17.0 ppb (16) 0.33 ppb (4) N/A N/A 17.0
 
Sept. 18, 2021, 9 a.m. 18.6 ppb (18) 2.1 ppb (2) N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) 0.34 ppb (4) N/A N/A 18.0
 
Sept. 18, 2021, 8 a.m. 18.0 ppb (17) 1.9 ppb (2) N/A 16.0 ppb (16) N/A N/A 20.0 ppb (19) 0.34 ppb (4) N/A N/A 19.0
 
Sept. 18, 2021, 7 a.m. 15.2 ppb (15) 1.6 ppb (2) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.29 ppb (4) N/A N/A 22.0
 
Sept. 18, 2021, 6 a.m. 13.3 ppb (13) 1.8 ppb (2) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) 0.27 ppb (4) N/A N/A 25.0
 
Sept. 18, 2021, 5 a.m. 13.3 ppb (13) 2.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 30.0 ppb (28) 0.26 ppb (4) N/A N/A 28.0
 
Sept. 18, 2021, 4 a.m. 11.8 ppb (12) 1.6 ppb (2) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.24 ppb (3) N/A N/A 32.0
 
Sept. 18, 2021, 3 a.m. 13.8 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (12) N/A N/A 36.0 ppb (34) 0.25 ppb (3) N/A N/A 34.0
 
Sept. 18, 2021, 2 a.m. 16.0 ppb (16) 2.0 ppb (2) N/A 14.0 ppb (14) N/A N/A 40.0 ppb (38) 0.27 ppb (4) N/A N/A 38.0
 
Sept. 18, 2021, 1 a.m. 15.4 ppb (15) 1.8 ppb (2) N/A 14.0 ppb (14) N/A N/A 51.0 ppb (48) 0.28 ppb (4) N/A N/A 48.0
 
Sept. 18, 2021, midnight 12.6 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 66.0 ppb (87) 0.26 ppb (4) N/A N/A 87.0
 
Sept. 17, 2021, 11 p.m. 9.7 ppb (10) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A 78.0 ppb (105) 0.27 ppb (4) N/A N/A 105.0
 
Sept. 17, 2021, 10 p.m. 11.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 83.0 ppb (108) 0.29 ppb (4) N/A N/A 108.0
 
Sept. 17, 2021, 9 p.m. 12.9 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (11) N/A N/A 77.0 ppb (105) 0.35 ppb (4) N/A N/A 105.0
 
Sept. 17, 2021, 8 p.m. 13.2 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A N/A 69.0 ppb (97) 0.34 ppb (4) N/A N/A 97.0
 
Sept. 17, 2021, 7 p.m. 13.3 ppb (13) 2.9 ppb (3) N/A 10.0 ppb (10) N/A N/A 60.0 ppb (68) 0.3 ppb (4) N/A N/A 68.0
 
Sept. 17, 2021, 6 p.m. 19.1 ppb (19) 5.3 ppb (5) N/A 14.0 ppb (14) N/A N/A 44.0 ppb (41) 0.34 ppb (4) N/A N/A 41.0
 
Sept. 17, 2021, 5 p.m. 19.1 ppb (19) 5.8 ppb (6) N/A 13.0 ppb (13) N/A N/A 35.0 ppb (33) 0.33 ppb (4) N/A N/A 33.0
 
Sept. 17, 2021, 4 p.m. 20.2 ppb (20) 6.6 ppb (7) N/A 14.0 ppb (14) N/A N/A 28.0 ppb (26) 0.34 ppb (4) N/A N/A 26.0
 
Sept. 17, 2021, 3 p.m. 19.8 ppb (19) 5.4 ppb (6) N/A 14.0 ppb (14) N/A N/A 21.0 ppb (20) 0.4 ppb (5) N/A N/A 20.0
 
Sept. 17, 2021, 2 p.m. 21.8 ppb (21) 4.9 ppb (5) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) 0.4 ppb (5) N/A N/A 21.0
 
Sept. 17, 2021, 1 p.m. 19.7 ppb (19) 2.8 ppb (3) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) 0.38 ppb (5) N/A N/A 19.0
 
Sept. 17, 2021, noon 18.1 ppb (18) 3.5 ppb (4) N/A 15.0 ppb (15) N/A N/A 19.0 ppb (18) 0.34 ppb (4) N/A N/A 18.0
 
Sept. 17, 2021, 11 a.m. 20.0 ppb (19) 2.7 ppb (3) N/A 17.0 ppb (17) N/A N/A 16.0 ppb (15) 0.32 ppb (4) N/A N/A 19.0
 
Sept. 17, 2021, 10 a.m. 25.5 ppb (25) 2.9 ppb (3) N/A 23.0 ppb (22) N/A N/A 9.0 ppb (9) 0.36 ppb (5) N/A N/A 25.0
 
Sept. 17, 2021, 9 a.m. 22.6 ppb (22) 2.7 ppb (3) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) 0.36 ppb (5) N/A N/A 22.0
 
Sept. 17, 2021, 8 a.m. 19.4 ppb (19) 2.6 ppb (3) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) 0.34 ppb (4) N/A N/A 19.0
 
Sept. 17, 2021, 7 a.m. 26.6 ppb (26) 2.6 ppb (3) N/A 24.0 ppb (23) N/A N/A 16.0 ppb (15) 0.4 ppb (5) N/A N/A 26.0
 
Sept. 17, 2021, 6 a.m. 27.9 ppb (27) 2.8 ppb (3) N/A 25.0 ppb (24) N/A N/A 15.0 ppb (14) 0.41 ppb (5) N/A N/A 27.0
 
Sept. 17, 2021, 5 a.m. 22.3 ppb (22) 2.3 ppb (3) N/A 20.0 ppb (19) N/A N/A 23.0 ppb (22) 0.37 ppb (5) N/A N/A 22.0
 
Sept. 17, 2021, 4 a.m. 23.9 ppb (23) 2.0 ppb (2) N/A 22.0 ppb (21) N/A N/A 25.0 ppb (24) 0.33 ppb (4) N/A N/A 24.0
 
Sept. 17, 2021, 3 a.m. 20.3 ppb (20) 2.2 ppb (3) N/A 18.0 ppb (17) N/A N/A 32.0 ppb (30) 0.34 ppb (4) N/A N/A 30.0
 
Sept. 17, 2021, 2 a.m. 18.5 ppb (18) 1.8 ppb (2) N/A 17.0 ppb (17) N/A N/A 44.0 ppb (41) 0.33 ppb (4) N/A N/A 41.0
 
Sept. 17, 2021, 1 a.m. 15.5 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 54.0 ppb (50) 0.3 ppb (4) N/A N/A 50.0
 
Sept. 17, 2021, midnight 15.5 ppb (15) 2.4 ppb (3) N/A 13.0 ppb (13) N/A N/A 64.0 ppb (81) 0.28 ppb (4) N/A N/A 81.0
 
Sept. 16, 2021, 11 p.m. 17.4 ppb (17) 2.8 ppb (3) N/A 15.0 ppb (15) N/A N/A 66.0 ppb (87) 0.3 ppb (4) N/A N/A 87.0
 
Sept. 16, 2021, 10 p.m. 14.3 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (12) N/A N/A 81.0 ppb (107) 0.32 ppb (4) N/A N/A 107.0
 
Sept. 16, 2021, 9 p.m. 12.2 ppb (12) 1.9 ppb (2) N/A 10.0 ppb (10) N/A N/A 85.0 ppb (109) 0.32 ppb (4) N/A N/A 109.0
 
Sept. 16, 2021, 8 p.m. 14.6 ppb (14) 2.5 ppb (3) N/A 12.0 ppb (12) N/A N/A 69.0 ppb (97) 0.33 ppb (4) N/A N/A 97.0
 
Sept. 16, 2021, 7 p.m. 18.6 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A N/A 57.0 ppb (58) 0.36 ppb (5) N/A N/A 58.0
 
Sept. 16, 2021, 6 p.m. 19.3 ppb (19) 4.3 ppb (5) N/A 15.0 ppb (15) N/A N/A 51.0 ppb (48) 0.39 ppb (5) N/A N/A 48.0
 
Sept. 16, 2021, 5 p.m. 20.1 ppb (19) 5.7 ppb (6) N/A 14.0 ppb (14) N/A N/A 37.0 ppb (35) 0.38 ppb (5) N/A N/A 35.0
 
Sept. 16, 2021, 4 p.m. 22.1 ppb (21) 7.3 ppb (7) N/A 15.0 ppb (15) N/A N/A 26.0 ppb (25) 0.41 ppb (5) N/A N/A 25.0
 
Sept. 16, 2021, 3 p.m. 21.4 ppb (21) 4.9 ppb (5) N/A 17.0 ppb (17) N/A N/A 20.0 ppb (19) 0.38 ppb (5) N/A N/A 21.0
 
Sept. 16, 2021, 2 p.m. 19.5 ppb (19) 4.0 ppb (4) N/A 15.0 ppb (15) N/A N/A 19.0 ppb (18) 0.35 ppb (4) N/A N/A 19.0
 
Sept. 16, 2021, 1 p.m. 20.1 ppb (19) 3.4 ppb (4) N/A 17.0 ppb (17) N/A N/A 16.0 ppb (15) 0.35 ppb (4) N/A N/A 19.0
 
Sept. 16, 2021, noon 18.0 ppb (17) 2.6 ppb (3) N/A 15.0 ppb (15) N/A N/A 18.0 ppb (17) 0.33 ppb (4) N/A N/A 17.0
 
Sept. 16, 2021, 11 a.m. 15.9 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (14) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A N/A 18.0
 
Sept. 16, 2021, 10 a.m. 15.2 ppb (15) 1.9 ppb (2) N/A 13.0 ppb (13) N/A N/A 20.0 ppb (19) 0.32 ppb (4) N/A N/A 19.0
 
Sept. 16, 2021, 9 a.m. 17.0 ppb (17) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 18.0 ppb (17) 0.32 ppb (4) N/A N/A 17.0
 
Sept. 16, 2021, 8 a.m. 18.0 ppb (17) 2.6 ppb (3) N/A 15.0 ppb (15) N/A N/A 18.0 ppb (17) 0.33 ppb (4) N/A N/A 17.0
 
Sept. 16, 2021, 7 a.m. 21.6 ppb (21) 2.3 ppb (3) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (20) 0.38 ppb (5) N/A N/A 21.0
 
Sept. 16, 2021, 6 a.m. 20.5 ppb (20) 2.3 ppb (3) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (23) 0.39 ppb (5) N/A N/A 23.0
 
Sept. 16, 2021, 5 a.m. 18.7 ppb (18) 1.6 ppb (2) N/A 17.0 ppb (17) N/A N/A 31.0 ppb (29) 0.35 ppb (4) N/A N/A 29.0
 
Sept. 16, 2021, 4 a.m. 20.6 ppb (20) 1.8 ppb (2) N/A 19.0 ppb (18) N/A N/A 32.0 ppb (30) 0.37 ppb (5) N/A N/A 30.0
 
Sept. 16, 2021, 3 a.m. 19.8 ppb (19) 2.1 ppb (2) N/A 18.0 ppb (17) N/A N/A 37.0 ppb (35) 0.33 ppb (4) N/A N/A 35.0
 
Sept. 16, 2021, 2 a.m. 23.3 ppb (22) 2.5 ppb (3) N/A 21.0 ppb (20) N/A N/A 42.0 ppb (39) 0.39 ppb (5) N/A N/A 39.0
 
Sept. 16, 2021, 1 a.m. 18.4 ppb (18) 1.7 ppb (2) N/A 17.0 ppb (17) N/A N/A 65.0 ppb (84) 0.34 ppb (4) N/A N/A 84.0
 
Sept. 16, 2021, midnight 15.1 ppb (15) 1.9 ppb (2) N/A 13.0 ppb (13) N/A N/A 81.0 ppb (107) 0.33 ppb (4) N/A N/A 107.0
 
Sept. 15, 2021, 11 p.m. 18.2 ppb (18) 2.8 ppb (3) N/A 15.0 ppb (15) N/A N/A 70.0 ppb (100) 0.3 ppb (4) N/A N/A 100.0
 
Sept. 15, 2021, 10 p.m. 20.6 ppb (20) 3.3 ppb (4) N/A 17.0 ppb (17) N/A N/A 71.0 ppb (101) 0.35 ppb (4) N/A N/A 101.0
 
Sept. 15, 2021, 9 p.m. 15.8 ppb (15) 2.6 ppb (3) N/A 13.0 ppb (13) N/A N/A 81.0 ppb (107) 0.37 ppb (5) N/A N/A 107.0
 
Sept. 15, 2021, 8 p.m. 15.0 ppb (15) 2.7 ppb (3) N/A 12.0 ppb (12) N/A N/A 72.0 ppb (102) 0.35 ppb (4) N/A N/A 102.0
 
Sept. 15, 2021, 7 p.m. 17.0 ppb (17) 4.0 ppb (4) N/A 13.0 ppb (13) N/A N/A 61.0 ppb (71) 0.33 ppb (4) N/A N/A 71.0
 
Sept. 15, 2021, 6 p.m. 22.7 ppb (22) 6.2 ppb (6) N/A 17.0 ppb (17) N/A N/A 44.0 ppb (41) 0.37 ppb (5) N/A N/A 41.0
 
Sept. 15, 2021, 5 p.m. 30.8 ppb (30) 11.0 ppb (11) N/A 20.0 ppb (19) N/A N/A 27.0 ppb (25) 0.45 ppb (6) N/A N/A 30.0
 
Sept. 15, 2021, 4 p.m. 36.3 ppb (35) 15.7 ppb (15) N/A 21.0 ppb (20) N/A N/A 18.0 ppb (17) 0.46 ppb (6) N/A N/A 35.0
 
Sept. 15, 2021, 3 p.m. 34.7 ppb (33) 15.7 ppb (15) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (13) 0.5 ppb (6) N/A N/A 33.0
 
Sept. 15, 2021, 2 p.m. 29.3 ppb (28) 9.7 ppb (10) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) 0.42 ppb (5) N/A N/A 28.0
 
Sept. 15, 2021, 1 p.m. 27.0 ppb (26) 5.5 ppb (6) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) 0.4 ppb (5) N/A N/A 26.0
 
Sept. 15, 2021, noon 23.8 ppb (23) 5.0 ppb (5) N/A 19.0 ppb (18) N/A N/A 7.0 ppb (7) 0.37 ppb (5) N/A N/A 23.0
 
Sept. 15, 2021, 11 a.m. 21.7 ppb (21) 3.0 ppb (3) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (6) 0.3 ppb (4) N/A N/A 21.0
 
Sept. 15, 2021, 10 a.m. 19.5 ppb (19) 2.6 ppb (3) N/A 17.0 ppb (17) N/A N/A 8.0 ppb (8) 0.29 ppb (4) N/A N/A 19.0
 
Sept. 15, 2021, 9 a.m. 21.3 ppb (21) 2.3 ppb (3) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (9) 0.31 ppb (4) N/A N/A 21.0
 
Sept. 15, 2021, 8 a.m. 15.9 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.28 ppb (4) N/A N/A 15.0
 
Sept. 15, 2021, 7 a.m. 15.9 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 19.0 ppb (18) 0.29 ppb (4) N/A N/A 18.0
 
Sept. 15, 2021, 6 a.m. 14.2 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (12) N/A N/A 22.0 ppb (21) 0.29 ppb (4) N/A N/A 21.0
 
Sept. 15, 2021, 5 a.m. 16.8 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 24.0 ppb (23) 0.28 ppb (4) N/A N/A 23.0
 
Sept. 15, 2021, 4 a.m. 20.9 ppb (20) 2.6 ppb (3) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (24) 0.28 ppb (4) N/A N/A 24.0
 
Sept. 15, 2021, 3 a.m. 19.2 ppb (19) 2.6 ppb (3) N/A 17.0 ppb (17) N/A N/A 32.0 ppb (30) 0.28 ppb (4) N/A N/A 30.0
 
Sept. 15, 2021, 2 a.m. 15.4 ppb (15) 2.0 ppb (2) N/A 13.0 ppb (13) N/A N/A 39.0 ppb (37) 0.26 ppb (4) N/A N/A 37.0
 
Sept. 15, 2021, 1 a.m. 12.9 ppb (13) 2.2 ppb (3) N/A 11.0 ppb (11) N/A N/A 49.0 ppb (46) 0.24 ppb (3) N/A N/A 46.0
 
Sept. 15, 2021, midnight 11.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 59.0 ppb (65) 0.25 ppb (3) N/A N/A 65.0
 
Sept. 14, 2021, 11 p.m. 11.6 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 71.0 ppb (101) 0.27 ppb (4) N/A N/A 101.0
 
Sept. 14, 2021, 10 p.m. 14.4 ppb (14) 2.2 ppb (3) N/A 12.0 ppb (12) N/A N/A 87.0 ppb (110) 0.33 ppb (4) N/A N/A 110.0
 
Sept. 14, 2021, 9 p.m. 15.7 ppb (15) 2.4 ppb (3) N/A 13.0 ppb (13) N/A N/A 82.0 ppb (107) 0.37 ppb (5) N/A N/A 107.0
 
Sept. 14, 2021, 8 p.m. 25.7 ppb (25) 4.8 ppb (5) N/A 21.0 ppb (20) N/A N/A 64.0 ppb (81) 0.44 ppb (5) N/A N/A 81.0
 
Sept. 14, 2021, 7 p.m. 27.7 ppb (27) 6.0 ppb (6) N/A 22.0 ppb (21) N/A N/A 56.0 ppb (55) 0.44 ppb (5) N/A N/A 55.0
 
Sept. 14, 2021, 6 p.m. 35.3 ppb (34) 9.9 ppb (10) N/A 25.0 ppb (24) N/A N/A 41.0 ppb (38) 0.45 ppb (6) N/A N/A 38.0
 
Sept. 14, 2021, 5 p.m. 50.0 ppb (48) 18.9 ppb (18) N/A 31.0 ppb (30) N/A N/A 25.0 ppb (24) 0.53 ppb (6) N/A N/A 48.0
 
Sept. 14, 2021, 4 p.m. 59.6 ppb (57) 27.8 ppb (27) N/A 32.0 ppb (31) N/A N/A 15.0 ppb (14) 0.66 ppb (8) N/A N/A 57.0